60V3E11
1-8
1
2
3
4
5
6
7
8
9
Fuel injection pumps
Twin fuel injection pumps with pressure regulators have been adopted to obtain a high fuel pressure
of 7 MPa (71 kg/cm
2
, 1,015 psi).
The fuel injection pressure is detected by the fuel pressure sensor installed on the fuel rail. Protec-
tors have been incorporated on the fuel pressure sensor to reduce vibrations conducting to the sen-
sor.
High-pressure fuel injection obtains a better air-fuel mixture due to finer atomization.
CAUTION:
Do not disassemble the fuel injection pumps. The proper facilities and special service tools
are required to reassemble them.
1
Fuel pump drive unit
2
High-pressure fuel pump with
pressure regulator
3
Fuel return hose
4
Pressure equalizing pipe
5
Fuel pressure sensor
6
Fuel rail
7
Injector #1
8
Injector #2
9
Injector #3
0
Injector #4
A
Injector #5
B
Injector #6
È
Medium-pressure fuel
(suction)
É
High-pressure fuel
Ê
Fuel return
S60V1150
:
È
:
É
:
Ê
3
1
2
3
4
5
6
2
8
0
B
7
9
A
Features and benefits
